MICHAEL ALAN WEISZ MD FACP
NPI 1326018730
Internal Medicine in Tulsa, OK
About Michael Alan Weisz Md Facp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL ALAN WEISZ MD FACP (NPI 1326018730) is an individual internal medicine provider in Tulsa, Oklahoma, licensed in Oklahoma (16925) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Michael Alan Weisz Md Facp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Weisz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tulsa, OK 74135
- Reassigned Medicare billing, Oklahoma enrollment
- 124 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74135 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TULSA, OK 74135
TULSA, OK 74135
TULSA, OK 74135
TULSA, OK 74135
TULSA, OK 74135
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Weisz's NPI number?
The NPI number for Michael Weisz is 1326018730. It was assigned to this individual provider in the NPPES registry on January 26, 2006.
Where is Michael Weisz located?
Michael Weisz practices at 4444 E 41st St 3rd Floor, Ste A, Tulsa, OK 74135. The listed phone number is (918) 619-4101.
What is Michael Weisz's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Michael Weisz enrolled in Medicare?
Yes. Michael Weisz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Weisz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Weisz reassigns Medicare benefits to Board Of Regents Of The University Of Oklahoma Ou Physicians Tulsa (Tulsa, OK). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Weisz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Weisz accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Michael Weisz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Michael Weisz was last updated on August 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.